Plasterer&#39;s plane



Patented Jan. 14, 1930 UNITED STATES GAMILLE J. noox, or ooiurtrou, CALIZEO'R'NIA PLASTERERS PLANE Application filed September 4, 928. Seria1 iio. 303, a I

This invention relates to plasterers tool and more especially to what is known as a Dutch plane. 7

hen plasterers finish a fiat mold surface it is not possible to run the contour gage fully into angles, either salient or re-entrant, and the unfinished corners are loaded with a plastic batch and a straight edge Dutch plane is then pushed endwise along the countered mold to dress down the corner batch to the proper surface, the chisel end of plane being driven sharp to the intersection of the angle.

No means has heretofore been devised whereby to plane down the ends of convex or concave mold or arch surfaces and my present invention resides in a tool having for its purpose to enable the correct finish of arched molds and faces at the corners and inner angles.

A further purpose is to provide a tool adjustable to operate on various convex or concave arch surfaces.

Another object is to provide a curved dressing plane of low cost, durable and simple construction and free of intricate mechanism, and which is of light weight and easily operable.

Other objects, advantages and features,

and details of means will be made manifest in the ensuing description of the herewith illustrative conception; it being understood that modifications, variations, and adaptations, and employment of equivalents, and

the transposition of parts and the utilization of appropriate materials may be resorted to within the spirit, scope and principle of the invention as it is more directly claimed hereinafter.

Figure 1 is a front view of a wall arch and its trim mold.

Figure 2 is a vertical section thereof.

Figure 3 is a side elevation of the present invention.

Figure 4 is a plan of the effective face thereof.

Figure 5 is a plan of the back or handle side of the plane.

Figure 6 is a section on line 66 of Figure 3.

Figure 7 is a plan of the chisel blade, N

form of the plane. a

Figure 9 is a section on line 99 of Figure8." 1 U 5 A portion of a wall W is shown ashaving an arch A provided with a-face mold F and inner mold beads B. v v The present tool is designed to cut the curved faces sharp to the corner G and to the angle N. The mold gages used to cut the molds cannot be run in the zones X X and the present toolis designed to'finish off the zones .X by following the previously out, set mold lines. 1 The tool includes a flexible strip 2 of desired width and length presenting a smooth face 3 for smoothing up a plastic surface. One end-of the strip 2 has' a fixed back piece 4 presenting a bevel face on which is ad-- justably secured a steel or other blade 5 havin'gachisel edge 6 intersecting the near end face of the strip 2. The back piece i issecured only at-oue' end as by a screw' or bolt 7 to the chisel end of'the plane strip 2 and is pivotally connected by atongue'and mortise joint, pivot 8 to an intermediate link 9 which in turn is similarly connected at 10 to a handle block 11 whose far end isslidably attached by a bolt or other means 12 having aset nut 13 whereby to clamp the plane stripQ, to the Figure 8 is a side elevation of a variant handle block-v 11 'afte'rfthe strip has been flexed to the concave or to convex, or to a flat plane as desired. Since one end of the back parts 49-11 is secured at 7 to the strip 2 the block 11 will shift when the strip is flexed and therefore the fastener 12 is slidable in a slot 14 in the strip 2, while the fastener is loose.

When the plane has been adjusted to match the surface A (longitudinally) it is then pushed endwise, as on the zone X, to'

dress the surface down to the near angle N. This planing is repeated on all surfaces of the same curvature or arch. The plane is adjustable fromthe convex form for arch A to a concave form for the convex surfaces, as F.

Figures 8and 9 show the strip 2 as in the form of a strip of metal while Figures 3, 4, and 5 show it as a strip of wood preferably having its back kerfed transversely at 2 to facilitateflexure of the plane.

It will be seen, in Figure 8, that when the plane is set to a fiat face alinement on face 3 that the back parts recede therefrom except at the fastener parts ,7 and 12, as will be the case also when the plane is set in concave form. When the plane is convex the pivoted ends, at 8 and 10 bow' outward and contact with the back face of the bowed strip 2,

Figure 3.

In Figure 9 the fastener 12 is shown as. slidable in a guide-way 16 fixed on the metal strip 2. 4

-Wh-at is claimed. is:

1. A plasterers dressing aplane for finishing ofi angles and corners of molded surfaces and including a smooth faced member of. flexible character, and back means to which the. member is secured and whereby it is stayed in set contour; said means including a. train of back pieces to whose re mote ends-theends ofsaid member are attaehed and which form intermediate back stays. r 2. A .plasterers dressing plane'for finish ing of? angles and corners of molded. surfaces and including a smooth faced member of flexible character, and back.: means to which thememberis secured and whereby it is stayed inset contour; said means including. a trainiof back pieces to whose remote vendsthe :end of said: members are attached, one end fixedly-and one end slidably. "3. A plasterers dressing plane for finishing ofl' angles and corners of molded surfaces'andincluding a smooth faced member of flexible character, and back means to which thewmember. is. secured and whereby it is'stayed in set contour; said means including a train of: back pieces to; whose remote ends the ends of said member are attached, one end fixedly and one end slidably,

and clamp means forthe sliding end of the said member;

CAMILLE J. BOUX. 

